Rubber boot



UNITE STATES ATENT Fries.

JAMES E. TILTON, OF ASHLAND, ASSIGNOR TO HIMSELF, AND XVILLIAM H. HUNTINGTON, OF- BOSTON, MASSACHUSETTS.

RUBBER BOOT.

SPECIFICATION forming part of Letters Patent No. 337,892, dated March 16, 1886.

Application filed September 4, 1885.

.To all whom it may concern-s Be it known that I, JAMES E. TILTON, of Ashland, in the county of Middlesex, State of Massachusetts, have invented a certain new and useful Improvement in Rubber Boots, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same,

reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of a boot embodying my improvement, and Fig. 2 a vertical transverse section of the same.

Like letters of reference indicate correspond ing parts in the different figures of the drawings.

My invention relates to that class of rubber 2O boots which are provided with leather soles;

and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a more durable and otherwise desirable article of this character is produced than is nowin ordinary use.

The nature of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, M represents the leg, and

N the foot, of the boot, these parts being composed of rubber, which is lined with cloth or felt, H, in the usual manner.

In making the boot the leg M and foot N are first formed by any of the ordinary processes for making these parts of feltlined rubber boots, the foot being left open at the bot tom or unprovided with a sole. The insole O, composed of leather, canvas, and a peculiar 4Q rubber compound, as hereinafter described, is then attached to the bottom of the last and a coat or body of the compound applied to its edges, as shown at J, the compound extending inwardly over the under side of said sole, as

shown at x x. The edges 1: of the upper are then lasted down onto the under side of the sole and secured by cement, in the usual manner, after which the space between the inturned edges of the upper is filled with rubber Serial No. 176,199. (No model) chips or pieces of rubber, as shown at f, and

a rubber cap or thin sheet of rubber, z, placed over the same, the edges of the cap being secured with the rubber compound to the inturned edges 22 of the upper. A leather sole, 0, is then placed on the cap 2, and secured by 5 nails '5, which pass through said sole and through the cap .2 and edges 0 into the sole 0, where they are headed down or clinched. The heel d is then applied, and an outer or tap sole, m, placed on the sole 1", and fairstitched to the last-named sole, as shown at a. After the cap z has been attached or secured in position, as described, and before the soles 1' on and heel d are attached, the sole 0 is vulcanized into the boot by submitting the boot to a suitable degree of heat for that purpose, thereby solidifying the rubber compound and firmly attaching the sole 0 and cap a to the adjoining parts.

The compound, which is placed between the edges of the sole 0 and the upper of the boot, and also beneath the inturned edges '12 of the upper and the overlapping edges of the cap z, is made by the following formula: Take equal parts of Para rubber and asphaltum, and dissolve the same in equal parts of benzine and collodion, a sufficient quantity of the hen zine and collodion being used to reduce the rubber and asphaltum to such a state or consistency as to enable it to be readily spread in asheet with a stiff brush or other suitable implement. After the rubber, asphaltum, benzine, and collodion have been mixed, as described, a sufficient quantity of sulphur is added to the compound thus formed to render 8 it vulcauizable, the sulphur being thoroughly incorporated with the other ingredients.

, I do not confine myself to the use of the tapsole m, or to attaching said sole to the sole 1' by the stitches a.

As the sole 0 constitutes the subj cot-matter of another application for which Letters Patent of the United States N 0. 331,462 were granted to me December i, 1885, I do not claim the same, broadly, herein; but,

Having thus explained my improvement, what I claim is 1. The upper N, an insole, a leather outer sole, both said soles lapping over the edges 12 of the upper, a row of nails passing through said solesand edges, and a layer of rubber chips interposed between said soles, and between said inturned edges of the upper, all said parts being vulcanized together.

2. The upper N, an insole, a leather outer sole, both said soles lapping over the edges 12 of the upper, a rubber sheet between said IO soles, also lapping over the edges of the upper and cemented'thereto, a row of nails passing through said soles, rubber sheet, and edges, and alayer of rubber ohipsinterposed between said-rubber sheet and the insole, and between said inturned edges of the upper, an said parts I 5 being vulcanized together.

JAMES E. TILTON.

Witnesses:

GEORGE '1. HIGLEY, LIDA J. TILTON. 

